Keyword Density Checker

Keyword Density Checker is a free online tool that analyze keyword density and word frequency in your text. Check 1-word, 2-word, and 3-word phrases with stop word filtering and CSV export. Process text instantly in your browser with no.

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What is Keyword Density Checker | Rune

The Keyword Density Checker analyzes word frequency and phrase density in your content. Choose from single words, 2-word phrases, or 3-word phrases (n-grams) to understand your content's focus.

Filter out common stop words, search for specific keywords, set minimum count thresholds, and export your analysis as CSV, essential for SEO writers, content strategists, and editors. Handles text of any length with real-time processing and instant output display in the interface. Supports Unicode characters, special symbols, and multiple languages for comprehensive text processing. Copy results directly to your clipboard with a single click for smooth integration into your workflow.

<20ms
Instant Analysis
3
N-gram Modes
100%
Client-Side
CSV
Export Ready

The Advantage of Using Keyword Density Checker on Rune

Keyword Density Checker on Rune handles n-gram analysis and stop word filtering without requiring an account or a software download. Open the page, use the tool, close the tab. Nothing is stored and nothing is tracked.

Where most alternatives lock their best features behind a paywall, Rune keeps Keyword Density Checker genuinely accessible. Analyze single words, 2-word bigrams, or 3-word trigrams to understand keyword patterns at different phrase lengths. That alone saves time for anyone who needs quick, reliable results on a daily basis.

Key Features of Keyword Density Checker

From n-gram analysis to min count filter, everything packed into one tool

N-gram Analysis

Analyze single words, 2-word bigrams, or 3-word trigrams to understand keyword patterns at different phrase lengths.

Stop Word Filtering

Exclude common words like 'the', 'is', 'and' to focus on meaningful keywords that matter for your content strategy.

Keyword Search

Search for a specific keyword or phrase to instantly see its frequency and density percentage in your text.

Density Color Coding

Keywords are color-coded by density, green for low, yellow for moderate, red for high, making over-optimization easy to spot.

CSV Export

Export your keyword analysis as a CSV file for use in spreadsheets, SEO tools, or content reports.

Min Count Filter

Set a minimum occurrence threshold to filter out rare terms and focus on significant recurring keywords.

Key Advantages of Keyword Density Checker

Browser-based processing

Every operation in Keyword Density Checker runs locally on your device. Your data stays in your browser and is never sent to external servers.

N-gram Analysis

Analyze single words, 2-word bigrams, or 3-word trigrams to understand keyword patterns at different phrase lengths. This feature is available for free with no usage limits on the standard tier.

Privacy by default

Keyword Density Checker processes your data on your machine. Your files and text stay local. Nothing is stored after you close the tab.

Mobile and desktop ready

Keyword Density Checker works on any screen size. The interface adapts to phones, tablets, and desktops so you can use it wherever you are.

No account needed

Use Keyword Density Checker without creating an account or providing an email address. The free tier gives you full access to core features.

Free with no hidden costs

Keyword Density Checker is completely free on the standard tier. There are no trial periods, no watermarks on output, and no surprise paywalls after you start using it.

Who Benefits from Keyword Density Checker

Keyword Density Checker fits into a wide range of workflows. Here is how different users put it to work.

Students and Academics
Use Keyword Density Checker for assignments, research papers, and coursework. Analyze single words, 2-word bigrams, or 3-word trigrams to understand keyword patterns at different phrase lengths.
Professionals and Teams
Integrate Keyword Density Checker into your daily workflow for faster turnaround on routine tasks. Exclude common words like 'the', 'is', 'and' to focus on meaningful keywords that matter for your content strategy.
Content Creators and Freelancers
Speed up your creative process with Keyword Density Checker. Search for a specific keyword or phrase to instantly see its frequency and density percentage in your text.
Developers and Technical Users
Add Keyword Density Checker to your toolkit for quick utility tasks between coding sessions. Keywords are color-coded by density, green for low, yellow for moderate, red for high, making over-optimization easy to spot.

How to Use Keyword Density Checker

Start using Keyword Density Checker in 3 quick steps

01

Paste Your Content

Paste the article, blog post, or any text you want to analyze.

02

Choose Analysis Mode

Select 1-word, 2-word, or 3-word analysis. Toggle stop words and set minimum count filters.

03

Review & Export

Review the keyword density table with color coding. Search for specific keywords or export the full analysis as CSV.

Rune pro tipsPro Tips

  • Keep primary keyword density between 1-3% for optimal SEO without triggering keyword stuffing penalties.
  • Use 2-word and 3-word analysis to identify your long-tail keyword usage patterns.
  • Enable stop word filtering to see only meaningful content keywords in your analysis.
  • Export to CSV and compare density across multiple articles to maintain consistent keyword strategies.

Getting the Best Results with Keyword Density Checker

Getting started with Keyword Density Checker takes seconds. Paste the article, blog post, or any text you want to analyze. The interface loads quickly and puts the essential controls front and center so nothing slows you down.

Once your input is ready, choose analysis mode. Select 1-word, 2-word, or 3-word analysis. Toggle stop words and set minimum count filters. Results appear in real time, giving you immediate feedback before you commit to a final output.

Finally, review & export. Review the keyword density table with color coding. Search for specific keywords or export the full analysis as CSV. The entire process from start to finish typically takes under a minute for most inputs.

For the best experience, keep these points in mind: Keep primary keyword density between 1-3% for optimal SEO without triggering keyword stuffing penalties. Use 2-word and 3-word analysis to identify your long-tail keyword usage patterns. Small adjustments like these can make a noticeable difference in your output quality.

What You Can Do with Keyword Density Checker

TASK 01

N-gram Analysis

Analyze single words, 2-word bigrams, or 3-word trigrams to understand keyword patterns at different phrase lengths. Available for free with no file size restrictions on the standard tier.

TASK 02

Stop Word Filtering

Exclude common words like 'the', 'is', 'and' to focus on meaningful keywords that matter for your content strategy. Available for free with no file size restrictions on the standard tier.

TASK 03

Keyword Search

Search for a specific keyword or phrase to instantly see its frequency and density percentage in your text. Available for free with no file size restrictions on the standard tier.

TASK 04

Density Color Coding

Keywords are color-coded by density, green for low, yellow for moderate, red for high, making over-optimization easy to spot. Available for free with no file size restrictions on the standard tier.

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Frequently Asked Questions

Common questions about Keyword Density Checker, answered below

What is keyword density?

Keyword density is the percentage of times a keyword appears in your text relative to the total word count. For example, if 'SEO' appears 5 times in a 200-word article, the keyword density is 2.5%. It's a key metric for on-page SEO optimization.

What's the ideal keyword density for SEO?

Most SEO experts recommend keeping primary keyword density between 1-3%. Below 1% may not be enough for search engines to understand your topic, while above 3% risks being flagged as keyword stuffing. Focus on natural, reader-friendly content.

What are n-grams?

N-grams are sequences of n consecutive words. 1-grams are single words, 2-grams (bigrams) are 2-word phrases like 'content marketing', and 3-grams (trigrams) are 3-word phrases like 'search engine optimization'. Analyzing different n-gram lengths reveals different keyword patterns.

What are stop words?

Stop words are common words that carry little meaning on their own, like 'the', 'is', 'and', 'a', 'to'. Filtering them out helps you focus on the meaningful keywords in your content rather than common function words.

Can I check a specific keyword?

Yes! Use the keyword search field to look up any specific word or phrase. The tool will instantly show its frequency and density percentage in your text.

What do the colors in the density table mean?

Green indicates low density (under 2%), yellow indicates moderate density (2-4%), and red indicates high density (over 4%). This color coding helps you quickly spot keywords that may be overused.

Is there a word limit?

No limits! The tool analyzes text of any length in your browser. It handles long articles, e-books, and entire documents without restrictions.

Can I export the analysis?

Yes! Click the 'Export CSV' button to download your keyword analysis as a CSV file. The export includes keyword, count, and density percentage for every entry.

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